Cultivator



June 12; 1923. 1,458,837

' R. E. L. MAY

CULTIVATOR Filed March 29 1919 WITNES: l6 INVENTOR. &. Q. IE;E.LL JW@2.7. J c I ATTORNEY.

Patented June 12, 1923.

ROBERT L, MAY, or HINESVILLE, GEORGIA.

CULTIVATOR- Application filed March 29, 1918. Serial No. 286,060.

To all whom it may concern:

Be it known that I, ROBERT E. L. MAY, a citizen of the United States,residing at Hinesville, in the county of" Liberty and State of Georgia,have invented new and useful Improvements in Cultivators, of which thefollowing is a specification.

.My present invention pertains to cultivators; and it has for itsgeneral objectto provide a cultivator of simple and inexpensiveconstruction, and one that is easy of draft, is susceptible of readyadjustment to meet different conditions, is adapted to clean a row ofconsiderable width incidental to two trips over the row, and is furtheradapted to produce a fine; dust mulch and leave the open furrow in thecenter of the row.

T0 the attainment of the foregoing the invention consists in thepeculiar construction, novel combinations and adaptations of parts, ashereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure 1 is a top plan view of the cultivator constituting the bestpractical embodiment of my invention that I have as yet devised.

Figure 21s a transverse section taken in a plane in front of the forwardtransverse frame bars.

' Figure 3 is an enlarged detail transverse section taken in the planeindicated by the line 7-7 of Figure 1.

Figure 4 is an enlarged transverse section taken in the plane indicatedby the line 8-8 of Figure 1. 1 1

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings.

Among other elements my novel cultivator comprises a longitudinalcentral draft beam 1. The forward part of this draft beam reachesupwardly, as indicated by 2, and is equipped with a clevis 3 or othersuitable means for the convenient attachment of a draft animal oranimals. In its lower edge and at points adjacent to its forward andrear ends, the beam 1 is provided with transverse recesses 4 and 5,Figures 3 and 4:.

Fixedto the side of the beam 1 is a segmental rack 6, and pivoted to thebeam is a hand lever 7, having a detent 8 for coopera,-

tion with the rack, in order to adjustably fix the lever'71 in thedifferent positions'in which the same is placed. Thesaid lever 7 isprovided forv the adjustment and ad- I justable fixing of the shoe 9through the medium of which .the depth at which the shovels operate isregulated. The said shoe 9 is carried at the lower end of alever 10 thatis .fulcrumed-atan intermediate point of its length to the beam 1 andhas its upper arm connected through a link 11 with the hand lever. j

Loosely receiving the rear and forward portions of the beam 1 areclamping bodies 12. These clamping bodies 12 are of rectangular form,and are providedin their vertical portions with transverse apertures 13,Figure 7 and in their upper end barsor bights with threadedapertures14.] "Bear mg in the apertures 14; are binding; screws w l 15 which areadapted when rotated to bear against the upper side of the beam 1 andthereby draw the clamping bodies 12 up wardly for an important purposeherein after set forth.

Arranged at opposite sides of and spaced from the draft beam 1 arelongitudinal side beams 16. These side beams at their forwardand rearends are pivotally con-' nected, preferably in the manner shown,

with transverse bars 17; the said transverse bars 17 being preferablyarranged in lapped relation and extended through the recesses 4 in thedraft beam 1, and also through the transverse apertures 13 in theclamping bodies 12. Manifestly' the said beams 16 may be arranged atdifferent distances from the draft-beam 1=to position the shovels car-15 downwardly so as to draw the bodies 12 upwardly and thereby clampandsecurely and strongly fix in an adjustable manner the transverse barsbeam 1. I

In the present andpreferred embodiment of my invention, I equip thecultivator with three shovels 18 which are preferably, though notnecessarily, of the form illustrated. Each shovel 18 i carried by ashank 19, and each shank is preferably of 17 together and to thecurvilinear form and is provided at its upper and forward end with afiat, vertically disposed head 20 in which are three (more or less)transverse apertures. In the attachment of'the shovel shanks, one to thedraft beam 1 and one to each side beam 16, a transverse bolt 22 ispassed through the shank at an intermediate point in the length thereofand through the adjacent beam and a transverse bolt 23 is assed throughone of the apertures 21 and the adjacent beam, and in this way theshovels are adjustably fixed to the beams with a view to furtherregulating the depth at which the shovels are to work.

By reference to Figure 1, it will be observed that the shovel l8complementary to the right hand side beam 16 may be attached adjacent tothe rear end of the said side beam in lieu of attachment at a pointadjacent to the forward end of the beam, as shown in Figure 1. In thisway the center shovel or the one complementary to the draft beam 1 maybe disposed toremost as is desirable in some cases.

It will be apparent -lrom the foregoing that notwithstanding thepeculiar advantages ascribed to my noYel cultivator, the same is simpleand inexpensive in construction and is generally well adapted towithstand the rough usage and the exposure to which cultivators and thelike are ordinarily subjected.

Having described my invention, what I claim and desire to secure byLetters-Patent, is:

The herein described cultivator comprising a longitudinal central beamhaving transverse recesses in its lower edge adjacent to its ends,clamping bodies receiving the beam and having vertical, threadedapertures in their upper bars and also having transverse rectangularapertures in their vertical side bars, binding screws bearing in saidthreaded apertures ol the clamping bodies and on the beam, longitudinalside beams in parallelism adjustable laterally toward and fromeachother, shovels connected with and car ried by the draft beam and theside beams,

respectively, and transverse bars of rectangular form in cross-sectioncarried by the side beams and arranged in lapped relation snugly in thetransverse recesses of the draft beam and in the transverse apertures inthe vertical bars of the clamping bodies and supported by said bodiesand also arranged in lapped relation at opposite sides of the clampingbodies. 7

In testimony whereof I affix my signature.

ROBERT E. L. MAY.

